Finding the Fourth Proportional to 189,704.08, 261,913.70 and 121,750.35
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Solution
The fourth proportional to 189,704.08, 261,913.70 and 121,750.35 is: 168,093.83
Step by Step Solution
- Step 1: Write the proportion equation
189,704.08 : 261,913.70 = 121,750.35 : x - Step 2: Convert to fraction form
189,704.08/261,913.70 = 121,750.35/x - Step 3: Cross multiply
189,704.08x = 261,913.70 × 121,750.35 - Step 4: Simplify right side
189,704.08x = 31,888,084,644.80 - Step 5: Solve for x
x = 31,888,084,644.80/189,704.08 - Step 6: Final answer
x = 168,093.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.